The Injection Molding Machines

The Morgan-Presses are versatile injection molding machines designed to reduce the costs of production.  Its unique design was especially developed to make injection molding of plastic molded parts practical and economical in the quantities required for rapid prototyping and low-volume production.  This makes it ideal for model shops,medical device manufacturers, R & D labs, and many other plastic injection molding applications that require short-run production needs.

Features on all Morgan’s injection molding machines:

  • Solid State Temperature Controllers – featuring digital set-point and readout, 3-mode proportioning and programmable controls, 0-800°F/0-430°C 1/8 DIN modular units.
  • Injection Speed Control – for adjusting injection speeds slower and faster where cavity fill rates are critical
  • Heavy duty cast aluminum construction
  • Hardened and chrome-plated barrels (material melt cylinders)
  • Precision ground chrome-plated stanchion rods
  • Generous 8″x11″ (maximum) mold plan area

Theory of injection molding


The theory of injection molding can be reduced to four simple individual steps: Plasticizing, Injection, Chilling, and Ejection. Each of those steps is distinct from the others and correct control of each is essential to the success of the total process.

Plasticizing – describes the conversion of the polymer material from its normal hard granular form at room temperatures, to the liquid consistency necessary for injection at its correct melt temperature.
Injection – is the stage during which this melt is introduced into a mold to completely fill a cavity or cavities.
Chilling – is the action of removing heat from the melt to convert it from a liquid consistency back to its original rigid state. As the material cools, it also shrinks.
Ejection – is the removal of the cooled, molded part from the mold cavity and from any cores or inserts.
Repetition of these basic steps in sequence is the process of injection molding.

The practice of injection molding
The practice of injection molding varies from the theory, only in as much as process limitations and available equipment affect it. Step by step process is explained in ST’s Cutting Costs in Short-run Plastic Injection Molding guide.

plastic injection molding manufacturer

With plastic injection molding, many parts might be made simultaneously (using the same mold). Plastic injection molding companies apply various different molding techniques to produce plastic components. These strategies incorporate thermoplastic and thermosetting injection molding, transferring to resin, blow molding, gyratory molding, compression molding, thermoforming, structural foam molding and many others.

Plastic injection molding is an extremely technological process. It requires experts in this kind of manufacturing business it to be competitive to the market. Consequently, a very scientific and systematic study must be first made before starting this opportunity. If you are planning to go directly into plastic injection molding business, you need to first know the different processes. Choose from a plastic injection molding process that matches your budget, your expertise, and your resources. Some plastic injection molding manufactures take your current strategy from primary prototype by means of production, delivery and finishing.

plastic injection molding manufactures
plastic injection molding manufactures

They’ve got an experienced staff of experienced engineers, designers and toolmakers who work with clients from building the concept to making the prototype also to the manufacturing from the precise custom mold. Serious trading mistakes sophisticated computer system assisted design and technology and also the latest equipment, they might produce clients with a technically exceptional mold and assure every product’s success.

It’s recommended to decide on vendors that are quickly, flexible and customer-driven, especially if you would like great amounts and quick transformation or specific little volume operates. Choose plastic injection molding companies which may have state-of-the-art injection molding amenities and machines that differ within weight from 75 to 500 tons.

See if they have full scale thermoplastic and thermosetting capabilities with computer aided manufacturing, skilled machine operators and first class level of quality assurance team. This guarantees that their output experiences high-quality plastic injection molding, which it appears the test of time.

plastic injection molding industry

Right from 1960s, pressure transmitters are being used in plastic injection molding industry for different aspects. Nowadays, most of the manufacturers in this industry are using them with the objective of obtaining perfection to their molds. In the present competitive market, only when the finished products are offered with good quality, businessmen will be in a position to stand out of the competition. Above all, in the current situation where pressure transducers are being designed by many professional firms their applications in different industries have gained popularity these days. Now, the answer to question as to why they should be used in plastic injection molding industry is as follows: 

With the help of pressure transmitters, people in the mold making industry can get precise and accurate information about the performance of the tool in the process of production and they will be in a position to gain other information as well and they are:

1. How is the balance of the tool getting affected at various fill speeds

2. The effect that is caused to the final part at different temperature levels

3. How does the outcome gets affected by different cooling temperatures

In addition to the aforesaid information, the users will also be in a position to understand about the effect of molding pressure on components with the help of differential pressure transmitters.

plastic injection molding
plastic injection molding

People in the plastic injection molding industry can make use of the precise data provided by the pressure transducers for helping out their customers, who have spend huge sums of money. This is because, nowadays, the cost of this equipment has largely reduced as compared to what it was in the past and above all with the advancement of information precise data can be obtained with the help of this equipment. Customers can now send the required model of mold electronically with the help of the solid model of differential pressure transmitters. This in turn avoids the possibility of poor installation and location of the mold making machine.

As mentioned earlier, usage of pressure transducers in the process of production can enable the plastic injection molding industry people to gain a competitive edge against their competitors operating at global level. Above all, in the current world where usage of sophisticated equipment is highly found with the objective of attaining perfection, the best idea is to make use of pressure transducers in the injection molding unit. This is applicable for all manufacturers aiming at utmost perfection in their finished products of injection molds.